If Brock Purdy is going to sign a contract extension with the San Francisco 49ers, there's an important person not to forget. SI's Grant Cohn wrote on Wednesday about a potentially complicating factor: agent Kyle Strongin. Strongin, writes Cohn, has never been in a negotiation this big before.

The San Francisco 49ers are in a period of transition. After qualifying for four NFC title games in five seasons, the 49ers petered out last season, finishing in last place in the NFC West as injuries and fatigue strongly weighed down one of the NFL's marquee organizations. Moving forward, the 49ers are ready to become an NFC powerhouse again.

Much of the offseason discussion surrounding the San Francisco 49ers has centered around the massive pay raise Brock Purdy is about to receive. But it's easy to forget how the team ended up with him as their starting quarterback in the first place.